Suction controlled filling attachment for tractor fuel tanks



' Aug. 3, 1943.

/ A. W. GUSTAFSON SUCTION CONTROLLED FILLING ATTACHMENT FOR TRACTOR FUELTANKS Sheets-Sheet Filed May 23, 1940 1n ventor 2' W GusZ'a/fsow Altomeys 1943- w. GUS'II'AFSON 2,325,674

SUCTION CONTROLLED FILLING ATTACHMENT FOR TRACTCR FUEL TANKS Filed May23, 1940 2 Sheets-Sheet 2 In venicr Patented Aug- 3 n a; 'lfhe-piesentinventionyrelates ful iix nprqvements in means :for Y filling the; fueltanksof tractors from abarreI or"tank,land has I automaticallycutofiitheusupply Tue! tank hashbee'n filled. 2-, v v no I A furtherobiectgof the lnve'ntiorfisto:provide t a lfilling attachment'oflthi's:chztrewten oflsimple r and practical *constructionij -whichislleificfient and reliable in: performance; relatively inexpensive tomanufacture and otherwise well adapted .Io'i 1 z the: purposesfor-whichvthevsame vls intended moved, 1

' 1 Figure? is alragmentary,veftieal ise -Iqr: the fueltank of ,thetraotor. 1 H f 1 Referring nowrtotthesdrawings in'detai where-' new endus SUCTION commutin- 1 new on mnneqron EUELQ'IANKS,

leading from ,the intake manifoldeofjthe traotdi to the tank for supplyba rrel wand lexnbodyin 'gf a u i n controlled ,valveistructureattachable-to the filling neck ofjthe'fueli tank of the tractofil to offuel when the l vlit h an ups me ATTACH in ,eTreqes'ses-in; theupper-portionF'of the body 7 5:. he' bailis'of substantially U-form endexitends i'abross the top of "the home] 5 and is pib' Other objects andadvantages fesigie inuthe v details of construction andkoperationf-as:more

fully hereinafter zdesribed and"e1aimed; refer- .ence beinghad;;tothe'laccoinpanyingfdrawings tenl; tothejfuel :tank of thettaotor,"

I Figure. 2; is a vertical. sectional view ithrough, t

the filler connection; takenavsubstantiallyv on a line 252 onmgres'awimth gias qome reremovedlrom the filleroonneotiom b .t Figure 41sa: bottom plan-view thereof 1 h Figurea isla-top:vlevv vviththerglassidorne view takensubst tially on in for the purpose ofillustration'lhave disclosed a. pliefelfredembodimentof: the invention,the nu line rFig-Q isa longitudinal sectional view through 7 Q formingpaft hereof, whereinlikeanumerals' ra fer tolike partsthroughout, and inwhich t Figural isarside'elevati0na1 view showing the 1 connection@leading from :the supply drum 01f],

In thebp'eration epithe device with the *cori: Hector 5 fitted ihthe"fll1it neckofthe fuel tanlg lll iinjd with the velvefliopen, thesuction froi n' the intalie inenifoldlfl of theeiigine willn'ev'acu 1meral'5 designates the bodyiof thefillerpconnec-j 5 tion whichhas a reduced lower end 6 provided with lugs 71 at diametricallyopposite sideslfor insertion in the notchesfl of the fill er neck 9 1 of a fuel tank I0and adaptedfor ca nming engagement under the downturned flange QH'OI thefiller neck to, tightlysjecurejthe bodyof the filleroonneetion inposition in the tank. Ages ket I2 is provided between the upper-edgeofthe neck bf the tank and the body Etoprovide an air-tight sealtherebetween. 3 The body 5 is of generally cylindrical form and l isprovided with a oonceved upper surface formed ettatihedfithe -hos'eextending intott drunri ieadmgwethe i intak vided with ailocking set'ser'evv i 9 bearing against the tdpgofithel doni." V Q imTheibndy iisp'rovided' with 'e filler pissage ifl extending through the b'ottom ofthe" bodyjandK j outwardly through one -s'ide'hvvallthereoflandprovidedkwith a; nippleiz f to whibha". 1105922 tank-23 and is iprovidedat its inner and .wit P o ?infiaketanza.

' Alsoextending"laterally"throughenwall o f body" 15" is: a palssii'gejli wh'iehjcohimunicates atits inner end, With the eentf of theconcaved v portion I 3 "of: the and has a valve structure 16 01cbnventional for n'enneetedto'its outel end end towhidh afhdse -or pipe21 is attached manifoldZB of the engine,

r l A; third? passage :32 extends-iern ni through. k the body Sendhasevanescentrormedeeitg guppeli end, the passage-32 being'eecentric in'the bodyi Normellyseited on the valve 'seetha is a ball 34 which clossoznjrnunioqtion through the n passage 32.

Hi, the suction oreeited V in the-dome oausing a; sliightuilSdtinfi ofball intothedotted position shown til '1 figure 2" and" thusopen the"passage '32 to evacuate I eirfrom' Ethe tank I n and fdraw hgithe fu elup;

the fuel will risepin the pessdg 3Z; i:ompletelyf unseating the btll 34which-will r011 upon the opening 13 atthe center of the conoaved uppersurface of the connectorand thus automatically; I I

cut {ofl communication with the vSuction passage [F25 and preventfurther fiowohthe fuel to the tank III. it

7 It is believed the details of construct adL- l vantagesrandymanneroffuse of the deVlCQ Wi11 Q j: be readily understood f'romthe foregoing with ut further dete ile d explanetion.

What I claim is! .1; having its' ends" I 8; inturnedand inserted n v 1 Afiller connector foi' fuel oiimotor A having a second passageprovidin'gcommunicaV-f in the upper surface of theibody above thesh'necting said'fuel passage witnawsourcelof; s 'plplyated in the chamberand a captive{valve' ifi the l chamber normally closing the second pa sge-in the body and adapted to be unseated from said vehicles comprising;a body? member adapted ifor air tight engagement" with:the tankysaidhodyin the upper surface of: the body atraipointgabove the horizontal{plane} of the lowermost pointi'of the "concaved; surf'ae e,- o'frthe-body "andrpro'viding comniunica-tion,-between the tankian'dsth'echaine 1 7 her; a suction pipe connecteduto ;the chamber;at

1suction -pipe bylfuel-ris, 'sagei h mlzera the o rofk he:body;;said=bdmam-s ai lateral passage coromunicating with the chainr'niu-nication between l the tankaandithe ehamher; v a; suction pipeconnected-tosaid latem passa e" for: evacuating airsfrom:sthestank-anctzfrosn the fimcies'fempfism a body member adapted for airtightengagement withthetank, said body having a concaved uppersurface, covermeans for the top of the'membercooperating with'the member toprovide anairchamber on .top of I the body, said body having' a passagecommunieating With the chamber; at thelowermost point of the concavedsurface 'of' the body; saidw'odi tion betweenithe tank and the chamberat apoiiit" z'ontal plane Of saidflfirst passagelaaisuction fiin Aconnected to the first named passage for evacu -f ating air from thetanka id from-"thecha'mloer" said body also having a fuel passage; "p'effor feeding fuel to the tank by the suction ere second passage forgravitatingz'into'xnositiontfor Y closing said first named passage b'yTfuelirising; in

the second named passage. V

having a concaved upper surface; aidomeshaped transparent hollow.-cover' positioned lonithe blody 1 andl coope'rating; therewithtoitpprovide' an air chamberat the top of thebodyglsaidibodyrhaving 1: avertical passage with itsnpper end terminating the lowermost point'ofthe-iconeaved? upn r e face-oi thebodyior evafil ating ainfromathetank40 with a source 'of supplyl forwfeeding fuel ftg iithe j tankaby-rthesuction created inzthmchamber arid l .a captive valve in :th chamben n ra v 01mins the firstznamed passage in theshodu knd dantedr to beunseated therefrom for gravitating zint ipo sitionv for closing;communicationthrough; said imthe firstznamed pasa connectorforiuelaanlssofimbtonfv e V a i s mpr n sb d rmemb madaptedife r tightengagement with thetank said bed hav -w concavedfupper surfacewdome-shapied V arentrhollowecov 'pos'iti edemfithedmdv andcooperatingtherewith; to provi' *izai i be at theacenter o heconeiweddipper;surface;v sa d; bqdyehaving; ;ssag,e with'-.itsi.upper'end terminating at a pointrabovertherhorizontal planeofthefirstmamm-passage:and-tproviding-g contjffime-ofthe bod y; saidzbody havingasecond'passage providing communication -:between the tank and thechamber-tat in the1 upper-surface of the body above the horizontal planeof said 2,325,674: l e t r V chamber, said body also having a fuelpassage,

a pipe connecting the fuel passage with a source r of supply for feedingfuel to the tank by the suction created in the chamber and a captivevalve in the chamber normally closing the second passagein thebody andadapted tobeunseated' therefromfor gravitating-into position for clos- I-'itig'saiii first'na'ined assagety fuel rising in the i 1 second namedpassage. '10- 10f. acmotojr vehieleysaid fuel tank being provided withiafille'rf'neck, a feedconduit extending from afuelreservoinaconnectorhaving an air-tight fitiii said filler neck and provided with a fuelpassage-having one end of said conduit attached 4, An autom-atic'cut-oitfor a fuel tank filler thereto, impair-"chamber provided in the connecsaid bottom-ofkthe chamberiatfa point above the horizontal plane J ofsaid-'- second nained passage, L

a: conduit" connectings the intake manifold 5 of the 1 enginefwith thezlast named' passag'e to "evacuate air from the tank t-a'nd irom' thechamber; and V jvalvameansimthe"chamberznormallyseated on V 1 1 @theupp'er endo'f the first-nanied passage toclose j the la'tter andre'sponsiveitmdirect action of oven 'flow of 1 fuel, 'enteringzthe'chamberfromj tne tank a V for unseatin )said alastanamed valvemeans:for

I gravitating into'zpositionito'close said last named passagea y j :5.-Afil1er"connector-for fuel tanks of' motor s l vehicles comprising. abodymember. havinga coneaved; upper: surface and' adapted for air tightengagement with the tank, aamem'b'e'r mounted on the body having .asconcave'dundersi'de 'pro-"' 'viding; a": chamber "on top {of the':-body,said body having iii-passage communicatinglgwiththe chain-1 her at thelowermost pointfofathe-conceived sur first passage-, ,a-+suctionz pipe"connected to the first-named passage-don evacuating an; froni -the tankandifrom thei chamberysaid bod'y also liav- I inga aflfuel passage;a'ipipe F connecting: said fuel passage: with a source nf-"supply fo'rfeeding fuel to the tank by the s'uctionvcreated in the'cha'iri' vbersand?a captiveavaive 'in the:chambe1-1normally r V 7 closing thesecondzp'assag'e inIthe bodyand adapt f, V V ad -to beurisatd"fromisaidsecond passage forf l gravitatingl into position for-'gclosing; saidfirst Auausn-wz: eus'r'hnson; I

